Repeater-type cocking firing mechanism for guns



July 2, 1963 E. BARN-:Ls 3,095,781

REPEATER-TYPE COOKING FIRING MECHANISM FOR GUNS Filed July 25, 1961 2 Sheets-Sheet 1 f0` ff 111i n si E. BARTELS 3,095,781

REPEATER-TYPE COCKING FIRING MECHANISM FOR GUNS July 2, 1963 2 Sheets-Sheet 2 Filed July 25, 1961 M .m nt .r .JM MU .r E M 5y Ma,

The invention relates to a repeater-type cocking firing mechanism for firearms, more Vparticularly guns, having a striker adapted to be retracted into the cocked position Y by means of a firing spindle or the like and flying forward into the operative position on firing through spring force. The invention differs from the constructions heretofore known above all in that the cocking and release of the striker and the return thereof to the inoperative position is obtained with a single spring, the firing mechanism, with the exception of the bore for the firing spindle, being accommodated in a single recess.

According to the invention, the spring is arranged between two spring abutments, at least one of which can be shifted towards the other for the purpose of tensioning the spring by actuating the tiring spindle and, on the relaxation of the spring on firing, projects the striker forward rapidly into the Yoperative position.

In a preferred embodiment according to the invention, both the spring bearings are arranged on the striker so as to be movable axially towards one another and, for the purpose of tensioning the spring, are moved towards one another by turning the firing spindle in one direction. In this process, the firing spindle car-ries the striker back into a cocked position at the same time. To this end, the striker has a shoulder referred to as the cocking piece and the firing spindle has two projections, namely a socalled pressure projection and a cocking projection. Of these projections, the cocking projection serves to retract the striker into the cocked position by means of the cocking piece. In this process, the striker then shifts the front spring abutment surrounding it towards the rear one, which is moved forwardly by the pressure projection.

Moreover, between the pressure projection and the rear spring abutment there is a pressure piece mounted loosely on the striker.

As a further feature of the invention, a cocking latch is rotatable in the cocking piece and the cocking projection presses against said cocking latch during the tensioning of the spring and thereby shifts the cocking piece together with the striker and the front spring abutment into the cocked position. Moreover, a pressure pin which is axially movable and parallel and eccentric with respect to the longitudinal axis of the striker is provided in the cocking piece for the purpose of turning the cocking latch in front of the cocking projection of the firing spindle when the rear spring abutment strikes against the front end face lof the pressure pin. In this Way, the pressure pin turns the cocking latch into its inoperative position by means of a projection thereon, whereby a second projection extending from the cocking latch arrives in front of the cocking projection of the firing spindle. This projection then serves to shift the cocking piece together with the striker into the cocked position by means of the cocking projection when the firing mechanism is cocked.

'Ilse rear abutment for the sole spring takes the form of an annular disc having its surface remote from the spring resting against pins mounted on the pressure piece or raised portions projecting therefrom, for example studs. The front spring abutment is advantageously a cap-like sleeve which has its end or base surface surrounding the striker in the form of a ring resting against an annular shoulder of the striker and thereby carries it 3,095,781 Patented `luly 2, 1963 along forwardly when the tension of the spring is relaxed. This cap-like sleeve moreover has an outwardly directed anged rim which serves as an abutment tor the spring.

Owing to the use of only a single spring, the repeatertype cocking tiring mechanism according to the invention has the advantage that operating trouble which otherwise occurs when a plurality of springs is employed is substantially reduced. Furthermore, the relatively large space which is otherwise required for accommodating a return spring is saved. Moreover, this firing mechanism can be fitted in breeches having very small crosssections. Y Apart from a recess Yfor the ringnmechanism, only an outwardly leading bore for the ring spindle is also required in the breech. In addition to this, the ring mechanism according to the invention forms a selfcontained structural unit which can be fitted and removed as one whole.

Details of the invention will appear from the following description of the embodiment illustrated in the drawing, in which:

FIGURE 1 shows the repeater-type cocking firing mechanism in the inoperative position, partly in elevation and partly in longitudinal section, together with a part of the breech;

FIGURE 2 shows the repeating cocking firing mechanism in the cocked position, partly in longitudinal section and partly in elevation, together with a part of the breech;

FIGURE 3 shows the repeating cocking mechanism after ring, and

FIGURE 4 is a view of FIGURE 1 in the direction of the arrow A.

In the breech 1 there is the bore 2 which serves to accommodate the repeating cocking firing mechanism constructed according to the invention. Said tiring mechanism contains the striker '3 with the point 4 inserted therein. Mounted on the rear end of the striker 3 and fixed detachably by means of a retaining pin 5 is the socalled cocking piece 6. This cocking piece contains a cocking latch 7 which is located transversely of the longitudinal axis of the striker 3 and eccentrically with respect thereto and has two projections S, 9. 'Ihe cocking piece moreover contains a pressure pin 10 which is arranged so that it is parallel and eccentric with respect to the longitudinal axis of the striker 3. This pressure pin is supported by its rear end against the projection 8 of the cocking latch 7 and by its front end, in the inoperative position according to FIGURE l, against a disc 13 placed loosely on the pressure piece 14. Owing to this supporting action, the cocking latch 7 is held in the inoperative position. 'I'he disc 13 serves as an abutment for the sole spring 111, which surrounds the striker 3. The other abutment is formed by a cap-like sleeve 12 which is mounted to be axially movable on the striker 3 and has its base engaging behind an annular shoulder on said striker. Said sleeve has a rim widened `outwardly in the form of a ange or collar and against which the spring `11 is supported. The pressure piece y14 rests against the other side of the disc 13 by means of let-in pins 14 or projecting studs, said pressure piece being loosely mounted on the striker 3. At right angles to the longitudinal axis of the striker 3 and thereby of the bore 2 there is provided in the breech 1 a bore 15 in which the firing spindle 16 is rotatably mounted, said ring spindle having at its outer end a cocking lever 17 having an eye 18 to which the firing lanyard 19 is attached. At the other end of the firing spindle 16 are a pressure projection 20 and a cocking projection 21. In the inoperative position according to FIGURE l, the pressure projection 20 of the firing spindle |16 rests against that side of the pressure piece 14 which is remote from the disc 13, while the cocking projection 21 is located in front of the front face of the projection 9 of the cooking latch 7.

To limit the stroke of the cooking lever 17, a shoulder or surface 22 is provided on the breech i1. To secure the tiri-ng spindle 16 against dropping out lof the breech 1, said spindle has on its periphery an annular groove 23 in which a retaining pin 24 engages.

If the tiring mechanism is to be cocked, the cooking lever 17 is drawn in a clockwise direction by pulling on the firing lanyard 19, as shown in FIGURE 1, ,until it strikes against the stop ZZ. `Owing to the pull, the tiring spindle is turned correspondingly in the bore in the breech 1. In this process, the pressure projection l of said spindle urges the pressure piece 14 to the right, i.e. forwardly, while its cooking projection `'211 strikes against the projection 9 ot the cooking latch 7 and thereby moves the cooking piece `6, in which the cooking latch 7 is mounted, .to the left, so that the striker 3, which is connected to the cooking piece 6, is likewise shifted to the left and carries with it the sleeve 12 serving as an abutment for the spring 111, whereby the spring 111 is tensioned.

As will be apparent from the foregoing description,-

the spring is tensioned from both ends, namely on the one hand owing to thev fact that the disc '13 is moved to the Iright by the pressure projection 1Z0i and the pressure piece 14 and, lon the other hand, `owing to the fact that the sleeve 12 is moved to the left by the cooking projection 21, the projection 9, the cooking piece 6 and the striker 3 with its point 4.

In the cocked state, all the parts are in the position shown in lFICrURE 2. At the same instant when the lever 17 strikes against the stop 22, the cooking projection 21 slides over and beyond the projection 9 of the cooking latch 7. Under the action of the tensioning force of the spring 11, which is further increased by the pressure projection 20, the striker 3 equipped with the point 4 now flies forwardly onto the percussion cap, which is not shown in the drawing. This position will be seen in FIGURE 3.

By terminating the pull on the ring lanyard 19 and thereby on the lever 17, the tiring spindle 16 is turned back by means of the spring 11 by way of the disc 13, the pressure piece 14 and the pressure projection 20. In this process, the returning pressure piece 14, by means of its back, urges the cooking piece 6 to the left, whereby the striker f3 and striker point 4 connected thereto are carried back again to the inoperative position shown in FIGURE l and, owing to the striking of the disc 13 against the pressure pin 10, the cooking latch 7 is turned by means of the latter and theprojection 8 in a counterclockwise direction in its bearing in the cooking piece 6, so that the projection 9 of said cooking latch again arrives in front of the cooking projection 21 of the tiring spindle 16. All the parts of the repeater-type cooking tiring mechanism are now again in the inoperative position. The gun can now be tired again.

The invention is not limited to the embodiment illustrated and described. Thus, the repeating iring mechanism may also be employed as an automatic cooking device if the tiring spindle 16 and the cooking latch 7 are exchanged and an additionalv pressure pin is fitted for initiating firing or release.

What I claim is:

Repeater cooking mechanism for firearms, more particularly guns, comprising a breech having a bore therein, a sleeve secured in one end of the bore, a striker slidably mounted in the bore and in the sleeve and having a ring pin at one end thereof, a disc mounted on the striker and sl-idable with respect thereto, a single cornpression spring around the striker abutting against the sleeve at one end and the -disc at the other end, a oooking piece secured on the other end of the striker to be slida-bly movable therewith, a member having a projecting part and a cooking part operative against the disc and the cooking piece, means to operate the member to compress the spring to a cooking position of the striker for the iii-ing position and to force the striker back to its initial inoperative position, a cooking latch rotatably mounted in the cooking piece and having two projections, and a pressure pin provided parallel and eccentric with respect to the longitudinal axis of the striker with one end contacting one of the projections of the cooking latch with the other projection of the cooking piece contacting the projecting part of the member in the cooking position.

References Cited in the file of this patent UNITED STATES PATENTS 710,124 Tasker Sept. 30, 1902 y1,469,663 Leech Oct. 2, 1923 1,795,568 McCann Mar. 10, 1931 

